Unable to set TeamsFilePolicy

Hi,

     I'm trying to update a policy value from teams, the 'CsTeamsFilePolicy'. All the documentation redirects to use powershell.

https://learn.microsoft.com/en-us/microsoftteams/turn-off-teams-native-file-upload-policy 

https://github.com/MicrosoftDocs/OfficeDocs-SkypeForBusiness/blob/public/Teams/turn-off-teams-native-file-upload-policy.md 

Every time I try to update this value or create a new CsTeamsFilesPolicy the error 'DefaultFileUploadAppId must be a GUID value' appears: 

• I don't see this property in the cmdlet, either reported anywhere.
• I have tried with 3 different tenants and all raise the same error
• I don't see this configuration in the graph API, so I can't manipulate elsewhere
• I tried to downgrade the module version
• I don't see any changes to this cmdlet in https://learn.microsoft.com/en-us/microsoftteams/teams-powershell-release-notes 

So don't really know if I'm doing something wrong or if the cmdlet it's broken. 

Thanks